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Overview of the Colorado Division of Water Resources

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Overview of the Colorado Division of Water Resources Colorado Division of Water Resources Water Literate Leaders of Northern Colorado • October 02, 2019 • Corey DeAngelis, Division Engineer • Mark Simpson, Poudre Water Commissioner • Jean Lever, Thompson Water Commissioner • Water Resources • Water • Parks and Wildlife Conservation Board • Oil & Gas • Reclamation, Conservation Mining and Safety Commission • State Land Board • Avalanche Information Center • Forestry https://cdnr.us/ • The position of Water Commissioner was created by the Legislature in 1879 • The office of State Hydraulic Engineer was created by the Legislature in 1881 • State Engineer is Governor Appointed • State Engineer’s Office became part of DNR in 1969 www.water.state.co.us Division of Water Resources Roles and Responsibilities • Water Administration – Surface & Underground – Water Court Participation • Interstate Compacts and Decrees • Flow Measurement (Hydrographic Program) • Public Safety (Dams and Wells) • Water Well Permitting • Public Information Service/Record Keeping DWR Water Divisions & Offices Division 1 Water Districts Map South Platte Basin Hydrology • USGS estimates total basin native flows to average about 1,400,000 acre-feet annually • Transmountain water imports average about 400,000 acre-feet annually • Total annual surface water diversions average about 4,000,000 acre-feet annually TRANSMOUNTAIN DIVERSIONS OFFICE OF THE STATE ENGINEER 1 2 3 STEAMBOAT 4 6 SPRINGS 5 6 7 30 8 TO COLORADO RIVER BASIN 31 GREELEY SOUTH 30. SARVIS DITCH 32 TO SOUTH PLATTE BASIN 31. STILLWATER DITCH 1. WILSON SUPPLY DITCH 32. DOME DITCH 9 2. DEADMAN DITCH 3. LARAMIE POUDRE TUNNEL 1 4. SKYLINE DITCH 5. CAMERON PASS DITCH 10 6. MICHIGAN DITCH 11 DENVER 7. GRAND RIVER DITCH 5 17 16 15 8. ALVA B. ADAMS TUNNEL GLENWOOD 19 18 9. MOFFAT WATER TUNNEL SPRINGS 12 10. BERTHOUD PASS DITCH 20 11. VIDLER TUNNEL GRAND 12. HAROLD D. ROBERTS TUNNEL JUNCTION 13 14 13. BOREAS PASS DITCH 21 14. HOOSIER PASS TUNNEL DELTA 4 2 22 PUEBLO TO ARKANSAS BASIN MONTROSE 15. COLUMBINE DITCH 16. EWING DITCH 17. WURTZ DITCH 23 18. HOMESTAKE TUNNEL 24 19. CHARLES H. BOUSTEAD TUNNEL 20. BUSK-IVANHOE TUNNEL 21. TWIN LAKES TUNNEL 3 22. LARKSPUR DITCH 25 ALAMOSA 26 27 28 DURANGO 7 29 TO RIO GRANDE BASIN 23. TARBELL 24. WEMINUCHE PASS DITCH 25. PINE RIVER-WEMINUCHE PASS DITCH 26. WILLIAMS CREEK-SQUAW PASS DITCH 27. DON LA FONT DITCHES 1 & 2 28. TREASURE PASS DIVERSION DITCH 29. TABOR DITCH South Platte Water Usage 1980 Surface Water Use Breakdown 2005 Surface Water Use Breakdown Augmentation Recharge Industrial 7% 6% 6% Municipal Industrial 12% 4% Municipal 21% Irrigation 62% Irrigation 82% Ground Water Only Ground Water & Surface Water Surface Water Only 18% 27% 55% Source: Colorado Decision Support System - 2005 SWSI 2010 – South Platte Basin http://cwcb.state.co.us/water-management/water-supply-planning/pages/swsi2010.aspx • Population – Current (2010) – 5.05 million – Projected (2050) – 8.6 to 10 million • Irrigated Area – Current (2010) – 860,000 acres – Projected (2050) Decrease by – 180,000 to 267,000 acres • Municipal & Industrial Supply “Gap” – between 99,000 AF and 360,000 AF – 110,000 – 130,000 AF (With Identified Projects and Process ) Key Water Measurement Terms cfs – a cubic foot of water past a fixed point in one second (second-foot) Acre-foot – one acre covered one foot in depth (1 cfs for 1 day equals approximately 2 acre-feet) – Average surburban family uses about ½ acre-foot of water per year Flume or Weir – specially shaped devices installed in a ditch to measure flow In 1879, Colorado established Water Commissioners to distribute water rights in priority based upon principle of “First In Time... First In Right” Colorado’s Water Administration System The Prior Appropriation Doctrine means those that put the water to use first are entitled to get their water first during periods of water shortage. In Colorado, the priority of a water right is determined by BOTH the date when the water was first put to a beneficial use and the date when the right was decreed by the Water Court. This is opposed to the Riparian Doctrine that recognizes water rights as being attached to lands adjacent to the river or stream. Colorado Average Precipitation U.S. Department of Commerce NOAA National Climatic Data Center Definition of Terms for a Call • Free River – the supply of water in the river exceeds the demand for water by all decreed water users • Call – the demand for water by a user with a decreed water right • Valid Call - recognized and administered by Division of Water Resources – the determination by the Water Commissioner of the most junior right that may divert when the supply of water in the river is less than the demand on the river by all decreed water users (also known as “The Call”) Over-Appropriated South Platte ● More water is usually claimed or desired by water users than is available. ● Generally experience a water shortage much of the year. ● Almost always throughout the summer only water users who have water rights dating from the 1860’s to the 1890’s can divert in-priority. ● Plans of augmentation* allow replacement of out-of- priority diversions. * Plans for Augmentation - Provide replacement water so that out-of-priority diversions by a junior water right user can occur without injuring downstream senior water rights. 17 South Platte River Drainage Water Rights Development # 76 SEDGWICK Logan Sedgwick 3 Priority Dates 48 NUNN Of Controlling • LarimerA # D64 STERLING # HOLYOKE Water Rights FORT COLLINS # # Weld Phillips 4 GREELEY # Early 1860’s • # ESTEAS PA R K C A FORT MORGAN # 65 Late 1860’s YUMA To Early A 5 K E EN E S B U RG M o r g a n #B WRAY Boulder # # 1870’s # 2 Yuma A B OU L D E RB W a s h i n g to n C Early 1880’s 6 1 Gilpin Adams Late 1880’s A B E N N E TT D To Mid-1890’s 7 DENVER # Clear Creek D#enver A Arapahoe J9efferson A 8 CASTLE ROCK Lincoln Kit Carson # Elbert FLAGLER 80 Douglas # 49 Park A 23 El Paso WOODLAND PARK # Teller Cheyenne # Cities Division 1 Boundary N Division 1 Districts Division 1 Counties W E Main Rivers S Plan for Augmentation • Plan to provide replacement water so that diversions by a junior water right user can occur without injuring other water right users. • The junior water right diversion is often associated with a well or a group of wells and replacement is of the depletions of those wells. Change of Water Right • Change in type, place, or time of use • Change in point of diversion • Change from direct application to storage and subsequent application • Change in point of storage • Often, a change of an irrigation right to municipal or augmentation purposes. This may involve new or alternate points of diversion, but not always. A few Recent Trends for Northern Front Range • Expanding Dairy Industry – Leprino cheese factories in Greeley and Ft. Morgan – Private dairies need water supply • Hemp / Marijuana • Fracking Operations • DWR Use of Technology – Electronic data loggers – Remote reporting Automated Diversions & Telemetry Data • South Platte River Basin (Div. 1) • Currently: 489 Sites on website(2005- 2013 SPBRT Funding) • Cooperative, USGS, DWR, NCWCD, LSPWCD, CCWCD, Etc. Future Consideration ● Development of water in the South Platte River basin will likely continue to include change of water rights applications. ○ 2002 - 1,000 Augmentation Plans ○ 2007 - 1,300 Increase of an average of 30 new plans per year out of nearly ○ 2018 - 1,900 300 new cases filed annually with the Court ● The decrees for these change decrees include complex administrative provisions resulting from moving the supply of raw water to the intended place of use. 23 Water Commissioner Responsibilities • Day to Day Administration – Setting the Valid Call Based on Supply and Demand – Assuring Diversions In Priority For Decreed Uses Without Waste – Delivery of Augmentation and Other Water After Assessing Transit Losses – Operating Exchanges – Assuring Diversions Are Measured – Assuring Augmentation and Return Flow Requirements Are Made – Assuring Compliance with Other Decree Conditions in Augmentation and Change Cases • Review of Accounting and Maintenance of Diversion Records Poudre River – District 3 Irrigation Ditch Construction in Fort Collins - Late 19th Century Where Does the Water in the Poudre Come From? Three main sources Native River Water C-BT System Water Other Transbasin Supplies Average Annual Poudre Basin Supplies 500,000 450,000 Other Transbasin Imports 400,000 CBT/Win 350,000 dy Gap Imports 300,000 Poudre River Flows 250,000 t) ee f - 200,000 e acr ( 150,000 t oun 100,000 Am 50,000 0 Native Poudre Water Roughly 65% of the Poudre’s water is native flows from snowmelt Starts from Poudre Lake off Trail Ridge Road, RMNP Flows vary from year to year The annual volume is highly variable Native Poudre Water Average daily flow varies depending on the time of year Two-thirds of the annual volume comes in a two month period Winter flows are very low, accounting for only 1 or 2 percent of the annual flow each month 1,800 Average Poudre River Flows 1,600 1,400 2/3rds of runoff 1,200 occurs in 2 monthsmonths 1,000 (cfs) w 800 Flo 600 400 200 0 ct ul pr ov ec an un ug ep J A O J J Feb Mar N D A S May Date Source: Cache la Poudre River at the Mouth of the Canyon Gage (USGS 06752000) Cache la Poudre River Monthly Average Native Runoff at the Mouth of the Canyon (1950-2005) 120,000 39% 100,000 ) t ee f - 80,000 acre ( f 23% Runof 60,000 e g vera A ly 14% 40,000 Month 20,000 5% 5% 3% 3% 1% 1% 2% 2% 2% 0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Native Poudre Water Lack of water in
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